Ice-cream freezer.



T4 I I Patented Dec. 15, 1914.

3 SHEETS-SHEET 1.

R. J. NEILSON & A. CAMPBELL. ICE CREAM FREEZER. APPLICATION FILED PEB.21,1913 1 121 122 Patented Dec. 15,1914

3 SHEBTSSHEET 2.

R. J. NEILSON & A. CAMPBELL ICE CREAM FREEZER.

APPLICATION FILED FElLZI, 1m.

1,121,122, Patented Dec.15,1914.

3 SHEET8-SHEET 3.

7HE NORRIS PETERS co FHOTOLITHO" WASHING TON D, c

illustrated in Fig. 1.. Fig.

nnrrnn STATES PATENT OFFICE.

ROBERT JAMIESON. NEILSON AND ALEXANDER. CAMPBELL, OF GLASGOW, SCOTLAND.

ICE-CREAM FREEZER.

To all whom it may concern:

Be it known that we, ROBERT JAMIESON NmLsow, of 388 Abercromby street, Glasgow, Scotland, and ALEXANDER CAMPBELL, 2 Ralston Terrace, Temple, Glasgow, Scotland, have invented certain new and useful Improvements in Ice-Cream Freezers, of which the following is a specification.

This invention relates to ice cream freezers.

The principal object of the invention is to improve and simplify the general constrnction of devices of this character.

Another object of the invention is to provide an improved driving means for the interior receptacle of devices of this character.

A further object of the invention is to provide an improved means for supporting the top of said interior receptacle while the latter is being revolved.

lVith the above and other objects in view the invention consists in general of certain novel details of construction and combina tion of parts hereinafter fully described, illustrated in the accompanying drawings, and specifically claimed.

In the accompanying drawings, like characters of reference indicate like parts in the several views, and Figure 1 is a side elevation partly broken away and partly in section to show one form of the invention. Fig. 2 is a top plan view with the cover partly broken away and showing the form 3 is a partial side elevation partly broken away of a modified form of the device, the view showing a modification of the driving gear. Fig. 4 is a plan view of the form shown in Fig. 3 with the lid or cover partly broken away. Fig. 5 is a view similar to Fig. 3 but showing a modified gearing arrangement and also means for feeding ice into the freezer tub by means of gravity. Fig.7 6 is a view similar to Fig. l but showing the arrangement of gearing illustrated in Fig. 5. Fig. 7 is a section showing a modified form of drive for the device. Fig. 8 is a plan view of the modification shown in Fig. 7.

In carrying out the objects of this invention there is provided a tub 10 which has a cover 11 provided with a centrally disposed opening 12.. Secured beneath. the rim or flange formed by this cover 11 is a metallic ring like stay or strengthening piece 13 pro- Specification of Letters Patent.

Patented Dec. 15,1914.

Application filed February 21, 1913. Serial No. 750,015.

vided with oppositely disposed bayonet slots 11 for the reception of the outwardly ex tending ends or terminals 15 of a U-shaped member 16 carrying the scrapers 17. By this means this U-shapedmember may be positioned within the tub or withdrawn from the tub in an easy and expeditious manner and, when in position in the tub, be prevented from rotating. This Ueshaped member 16 will be noted to constitute the scraper frame. In the bottom 17 of the tub there is fitted a suitable socket piece 18 for the reception of the boss 19 formed on the bottom 20 of a cream container or receptacle 21. In the form shown in Fig. 9 the socket is formed in the bottom of the can as indicated at 22 while the boss is held onthe bottom of the tub as indicated at 23. This container 21 is frictionally engaged within a suitable gear ring moving in a slot or groove 24 formed in the stay 13. In the form shown in Fig. 1 this gear ring takes the form of a worm gear 25 anclwith this worm gear meshes a worm 26 suitably supported in a pocket 27 formed in the stay, said worm being mounted ona shaft 28 one end of which projects through a suitable bearing 29 on the side of the tub 10 and has mounted thereon a belt pulley 30 for the reception of a driving belt. The form shown in Figs. 5 and 6 is similar in all respects to the form shown in Fig. 1 with the, exception that the pocket formed inthe stay ring causes an enlargement 31 'whieh extends out through the side of the tub 10. In this form shown in Figs. 5 and 6 there is also provided a suitable pipe 32 which ex: tends from a brine or crushed ice reservoir 33 so that the tub 10 may be constantly supplied with the crushed ice by gravity, it being noted that the pipe 32 is made sufficiently large to accommodate the small particles of crushed ice used In the form of the device shown in Figs. 3 and l the gear ring takes the form of a beveled gear 3% with which is engaged a beveled pinion .35 carried on a shaft 36 extending out through a bearing 37 mounted on the side of the tub. On the outer end of this shaft 36 is a belt pulley 38 50 that the shaft 36 can be driven. In the form shown in Figs. 7 and 8 this gear ring consists of a ring 39 whichis provided. pockets 40 arranged with spaced pairs of to retain the bearing balls 41 which constitute the teeth of a Worm gear and with which rneshes a worm 42 carried in a suitable pocket 43 in the stay ring and mounted on a shaft 44 which may be driven in a manner similar to the worms shown in-Figs. 1 and 5. y

In the form shown in Figs. 1 and 2 the scraper frame islprovided with a suitable socket 56 wherein is mounted the lower end of a shaft 57 carrying the mixing blades 58, the shaft and scraper frame both being stationary as previously described.

In order to cover the inner receptacle a suitable cover 59 is provided at each end, said cover fitting the opening 12 of the cover or top 11. It will readily be understood in the operation of this device that the tub, having been packed with ice, the container is placed therein and filled with the mixture to be frozen. The frame holding the scrapers is then dropped into the bayonet slots and moved to its proper position in said slots. The driving shaft is then actuated in any of the manners illustrated and this causes rotation of the container while the scraper frame remains stationary. The cream is thus smoothly and quickly frozen.

" There has thus been provided a simple Copies of this patent may be obtained for and efficient device'rof the described and of the character specified.

It will be obvious that many minor It is not therefore desired to confine the,

invention to the exact form herein shown and described, but it is wished to include all such as come properly within the scope claimed. We claim l In a freezer ofthe class described, atub having a bottom provided with a centrally disposed bearing, a ring-like stay disposed in the top of the tub, a receptacle pivoted on said bearing and revoluble in said stay, means to revolve said receptacle comprising a gear ring secured to the receptacle and rotatably mounted in said stay, adrivin'g sl 1aft, and a gear on said driving shaft and meshing with the gear ring.

In testimony whereof we aflixour'signatures in presence of two witnesses.

ROBERT JAMIESON NEILSON. ALEXANDER CAMPBELL; Witnesses:

J OHN LIDDLE, J OHN TRAIN LIDDLE- five cents each, by addressing the Commissioner of 2mm, Washington, D. C. I 

